package com.qingcheng.service.impl;

import com.alibaba.dubbo.config.annotation.Reference;
import com.alibaba.dubbo.config.annotation.Service;
import com.alibaba.fastjson.JSON;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.qingcheng.dao.OrderItemMapper;
import com.qingcheng.dao.OrderLogMapper;
import com.qingcheng.dao.OrderMapper;
import com.qingcheng.entity.PageResult;
import com.qingcheng.pojo.order.Order;
import com.qingcheng.pojo.order.OrderItem;
import com.qingcheng.pojo.order.OrderLog;
import com.qingcheng.service.goods.SkuService;
import com.qingcheng.service.order.CartService;
import com.qingcheng.service.order.OrderService;
import com.qingcheng.util.IdWorker;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisHash;
import org.springframework.transaction.annotation.Transactional;
import tk.mybatis.mapper.entity.Example;

import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import java.util.stream.IntStream;

@Service(interfaceClass = OrderService.class)
public class OrderServiceImpl implements OrderService {

    @Autowired
    private OrderMapper orderMapper;

    @Autowired
    private OrderLogMapper orderLogMapper;

    /**
     * 返回全部记录
     *
     * @return
     */
    public List<Order> findAll() {
        return orderMapper.selectAll();
    }

    /**
     * 分页查询
     *
     * @param page 页码
     * @param size 每页记录数
     * @return 分页结果
     */
    public PageResult<Order> findPage(int page, int size) {
        PageHelper.startPage(page, size);
        Page<Order> orders = (Page<Order>) orderMapper.selectAll();
        return new PageResult<Order>(orders.getTotal(), orders.getResult());
    }

    /**
     * 条件查询
     *
     * @param searchMap 查询条件
     * @return
     */
    public List<Order> findList(Map<String, Object> searchMap) {
        Example example = createExample(searchMap);
        return orderMapper.selectByExample(example);
    }

    /**
     * 分页+条件查询
     *
     * @param searchMap
     * @param page
     * @param size
     * @return
     */
    public PageResult<Order> findPage(Map<String, Object> searchMap, int page, int size) {
        PageHelper.startPage(page, size);
        Example example = createExample(searchMap);
        Page<Order> orders = (Page<Order>) orderMapper.selectByExample(example);
        return new PageResult<Order>(orders.getTotal(), orders.getResult());
    }

    /**
     * 根据Id查询
     *
     * @param id
     * @return
     */
    public Order findById(String id) {
        return orderMapper.selectByPrimaryKey(id);
    }

    @Autowired
    private CartService cartService;
    @Autowired
    private IdWorker idWorker;

    @Autowired
    private OrderItemMapper orderItemMapper;

    @Reference
    private SkuService skuService;

    @Autowired
    private RabbitTemplate rabbitTemplate;

    /**
     * 新增 订单
     *
     * @param order
     */
    public Map<String, Object> add(Order order) {
        // 获取购物车（刷新单价）
        List<Map<String, Object>> orderItemList = cartService.findNewOrderItemList(order.getUsername());
        //获取选中的购物车
        List<OrderItem> orderItems = orderItemList.stream().filter(cart -> (boolean) cart.get("checked"))
                .map(cart -> (OrderItem) cart.get("item")).collect(Collectors.toList());

        //扣减库存
        if (!skuService.deductionStock(orderItems)) {
            throw new RuntimeException("库存扣减失败");
        }

        try {
            //保存订单主表
            order.setId(idWorker.nextId() + "");
            //合计数计算
            IntStream numStream = orderItems.stream().mapToInt(OrderItem::getNum);
            IntStream moneyStream = orderItems.stream().mapToInt(OrderItem::getMoney);
            int totalNum = numStream.sum();//总数量
            int totalMoney = moneyStream.sum();//订单总金额

            int preMoney = cartService.preferential(order.getUsername()); //计算优惠金额
            order.setTotalNum(totalNum);  //封装总数量
            order.setTotalMoney(totalMoney); //封装总金额
            order.setPreMoney(preMoney);//优惠金额
            order.setPayMoney(totalMoney - preMoney);//支付金额=总金额+优惠金额
            order.setCreateTime(new Date());//订单创建日期
            order.setOrderStatus("0"); // 订单状态
            order.setPayStatus("0"); // 支付状态：未支付
            order.setConsignStatus("0"); //发货状态：未发货

            //插入新订单记录
            orderMapper.insert(order);

            double proportion = (double) order.getPayMoney() / totalMoney;

            //保存订单明细表
            for (OrderItem orderItem : orderItems) {
                orderItem.setOrderId(order.getId());//订单主表ID
                orderItem.setId(idWorker.nextId() + "");
                orderItem.setPayMoney((int) (orderItem.getMoney() * proportion));//支付金额
                orderItemMapper.insert(orderItem);
            }

//            int i = 1 / 0;
        } catch (Exception e) {
            rabbitTemplate.convertAndSend("", "queue.skuback", JSON.toJSONString(orderItems));
            throw new RuntimeException("订单生成失败");  //抛出异常,让其回滚
        }


        //清楚选中的购物车
        cartService.deleteCheckedCart(order.getUsername());

        //返回订单号 和支付的金额
        Map<String, Object> map = new HashMap<>();
        map.put("ordersn", order.getId());  //订单号
        map.put("money", order.getPayMoney()); //订单金额
        return map;

    }

    /**
     * 修改
     *
     * @param order
     */
    public void update(Order order) {
        orderMapper.updateByPrimaryKeySelective(order);
    }

    /**
     * 删除
     *
     * @param id
     */
    public void delete(String id) {
        orderMapper.deleteByPrimaryKey(id);
    }

    /**
     * 修改订单状态
     *
     * @param orderId
     * @param transactionId
     */
    @Override
    @Transactional
    public void updatePayStatus(String orderId, String transactionId) {
        //根据订单id查询订单
        Order order = orderMapper.selectByPrimaryKey(orderId);

        if (order != null && "0".equals(order.getPayStatus())) {  //存在订单并且状态为0
            // 修改订单表
            order.setPayStatus("1");
            order.setOrderStatus("1");
            order.setUpdateTime(new Date());
            order.setPayTime(new Date());
            order.setTransactionId(transactionId);//微信返回的交易流水号
            orderMapper.updateByPrimaryKeySelective(order);

            //记录订单变动日志
            OrderLog orderLog=new OrderLog();
            orderLog.setId(idWorker.nextId()+"");
            orderLog.setOperater("system"); //系统
            orderLog.setOperateTime(new Date()); //当前日期
            orderLog.setOrderStatus("1"); //订单状态
            orderLog.setPayStatus("1");
            orderLog.setRemarks("支付流水号"+transactionId);
            orderLog.setOrderId(orderId);
            orderLogMapper.insert(orderLog);

        }
    }

    /**
     * 构建查询条件
     *
     * @param searchMap
     * @return
     */
    private Example createExample(Map<String, Object> searchMap) {
        Example example = new Example(Order.class);
        Example.Criteria criteria = example.createCriteria();
        if (searchMap != null) {
            // 订单id
            if (searchMap.get("id") != null && !"".equals(searchMap.get("id"))) {
                criteria.andLike("id", "%" + searchMap.get("id") + "%");
            }
            // 支付类型，1、在线支付、0 货到付款
            if (searchMap.get("payType") != null && !"".equals(searchMap.get("payType"))) {
                criteria.andLike("payType", "%" + searchMap.get("payType") + "%");
            }
            // 物流名称
            if (searchMap.get("shippingName") != null && !"".equals(searchMap.get("shippingName"))) {
                criteria.andLike("shippingName", "%" + searchMap.get("shippingName") + "%");
            }
            // 物流单号
            if (searchMap.get("shippingCode") != null && !"".equals(searchMap.get("shippingCode"))) {
                criteria.andLike("shippingCode", "%" + searchMap.get("shippingCode") + "%");
            }
            // 用户名称
            if (searchMap.get("username") != null && !"".equals(searchMap.get("username"))) {
                criteria.andLike("username", "%" + searchMap.get("username") + "%");
            }
            // 买家留言
            if (searchMap.get("buyerMessage") != null && !"".equals(searchMap.get("buyerMessage"))) {
                criteria.andLike("buyerMessage", "%" + searchMap.get("buyerMessage") + "%");
            }
            // 是否评价
            if (searchMap.get("buyerRate") != null && !"".equals(searchMap.get("buyerRate"))) {
                criteria.andLike("buyerRate", "%" + searchMap.get("buyerRate") + "%");
            }
            // 收货人
            if (searchMap.get("receiverContact") != null && !"".equals(searchMap.get("receiverContact"))) {
                criteria.andLike("receiverContact", "%" + searchMap.get("receiverContact") + "%");
            }
            // 收货人手机
            if (searchMap.get("receiverMobile") != null && !"".equals(searchMap.get("receiverMobile"))) {
                criteria.andLike("receiverMobile", "%" + searchMap.get("receiverMobile") + "%");
            }
            // 收货人地址
            if (searchMap.get("receiverAddress") != null && !"".equals(searchMap.get("receiverAddress"))) {
                criteria.andLike("receiverAddress", "%" + searchMap.get("receiverAddress") + "%");
            }
            // 订单来源：1:web，2：app，3：微信公众号，4：微信小程序  5 H5手机页面
            if (searchMap.get("sourceType") != null && !"".equals(searchMap.get("sourceType"))) {
                criteria.andLike("sourceType", "%" + searchMap.get("sourceType") + "%");
            }
            // 交易流水号
            if (searchMap.get("transactionId") != null && !"".equals(searchMap.get("transactionId"))) {
                criteria.andLike("transactionId", "%" + searchMap.get("transactionId") + "%");
            }
            // 订单状态
            if (searchMap.get("orderStatus") != null && !"".equals(searchMap.get("orderStatus"))) {
                criteria.andLike("orderStatus", "%" + searchMap.get("orderStatus") + "%");
            }
            // 支付状态
            if (searchMap.get("payStatus") != null && !"".equals(searchMap.get("payStatus"))) {
                criteria.andLike("payStatus", "%" + searchMap.get("payStatus") + "%");
            }
            // 发货状态
            if (searchMap.get("consignStatus") != null && !"".equals(searchMap.get("consignStatus"))) {
                criteria.andLike("consignStatus", "%" + searchMap.get("consignStatus") + "%");
            }
            // 是否删除
            if (searchMap.get("isDelete") != null && !"".equals(searchMap.get("isDelete"))) {
                criteria.andLike("isDelete", "%" + searchMap.get("isDelete") + "%");
            }

            // 数量合计
            if (searchMap.get("totalNum") != null) {
                criteria.andEqualTo("totalNum", searchMap.get("totalNum"));
            }
            // 金额合计
            if (searchMap.get("totalMoney") != null) {
                criteria.andEqualTo("totalMoney", searchMap.get("totalMoney"));
            }
            // 优惠金额
            if (searchMap.get("preMoney") != null) {
                criteria.andEqualTo("preMoney", searchMap.get("preMoney"));
            }
            // 邮费
            if (searchMap.get("postFee") != null) {
                criteria.andEqualTo("postFee", searchMap.get("postFee"));
            }
            // 实付金额
            if (searchMap.get("payMoney") != null) {
                criteria.andEqualTo("payMoney", searchMap.get("payMoney"));
            }

        }
        return example;
    }

}
